<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>bootstrap</title>
    <link rel="stylesheet" href="bootstrap3/css/bootstrap.min.css" />
    <style>
      .container div {
        border: 1px solid;
      }
    </style>
  </head>
  <body>
    <div class="container">
      <div class="row">
        <div class="col-md-6">
          <kbd><kbd>ctrl</kbd> + <kbd>,</kbd></kbd>
        </div>
        <div class="col-md-6">
          <span class="glyphicon glyphicon-remove" aria-hidden="true"></span>
        </div>
      </div>
      <div class="row">
        <div class="col-md-3">3</div>
        <div class="col-md-6">6</div>
        <div class="col-md-3">3</div>
      </div>
    </div>
  </body>
</html>
